
High-dose areas are unintentionally created as a result of gap shifts when the prescribed dose in the two adjacent areas are different.
Publication
, Journal Article
Bentel, GC; Halperin, EC
Published in: Med Dosim
December 1990
A large number of methods have been described for matching adjacent fields to prevent over- or underdosage at a field junction. Most authors recommend that the location of field junctions be shifted to different locations during the course of the treatment in an effort to "smear out" any dose inhomogeneity regardless of which field matching technique is used. This report focuses on the considerable variation in dose that can occur when the dose in the two adjacent treatment areas is different at the time of the gap shift. In a typical cranio-spinal treatment we found a 16% dose increase over the prescribed central axis dose.
Duke Scholars
Published In
Med Dosim
DOI
ISSN
0958-3947
Publication Date
December 1990
Volume
15
Issue
4
Start / End Page
179 / 183
Location
United States
Related Subject Headings
- Spinal Neoplasms
- Spinal Cord
- Radiotherapy Planning, Computer-Assisted
- Radiotherapy Dosage
- Posture
- Oncology & Carcinogenesis
- Models, Structural
- Humans
- Brain Neoplasms
- 1103 Clinical Sciences
Citation
APA
Chicago
ICMJE
MLA
NLM
Bentel, G. C., & Halperin, E. C. (1990). High-dose areas are unintentionally created as a result of gap shifts when the prescribed dose in the two adjacent areas are different. Med Dosim, 15(4), 179–183. https://doi.org/10.1016/0958-3947(90)90004-2
Bentel, G. C., and E. C. Halperin. “High-dose areas are unintentionally created as a result of gap shifts when the prescribed dose in the two adjacent areas are different.” Med Dosim 15, no. 4 (December 1990): 179–83. https://doi.org/10.1016/0958-3947(90)90004-2.
Bentel GC, Halperin EC. High-dose areas are unintentionally created as a result of gap shifts when the prescribed dose in the two adjacent areas are different. Med Dosim. 1990 Dec;15(4):179–83.
Bentel, G. C., and E. C. Halperin. “High-dose areas are unintentionally created as a result of gap shifts when the prescribed dose in the two adjacent areas are different.” Med Dosim, vol. 15, no. 4, Dec. 1990, pp. 179–83. Pubmed, doi:10.1016/0958-3947(90)90004-2.
Bentel GC, Halperin EC. High-dose areas are unintentionally created as a result of gap shifts when the prescribed dose in the two adjacent areas are different. Med Dosim. 1990 Dec;15(4):179–183.

Published In
Med Dosim
DOI
ISSN
0958-3947
Publication Date
December 1990
Volume
15
Issue
4
Start / End Page
179 / 183
Location
United States
Related Subject Headings
- Spinal Neoplasms
- Spinal Cord
- Radiotherapy Planning, Computer-Assisted
- Radiotherapy Dosage
- Posture
- Oncology & Carcinogenesis
- Models, Structural
- Humans
- Brain Neoplasms
- 1103 Clinical Sciences